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Aneli [31]
4 years ago
8

When the quantity q is greater than zero, __________ is added to the system?

Physics
1 answer:
Alex787 [66]4 years ago
6 0

Heat is added to the system.

The relation between thermal energy and temperature change in mass is given by the following expression

q = m•C•ΔT

where q is the quantity of heat transferred 

m is the mass 

C is the heat capacity of the material

ΔT is the temperature change 

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The forms of energy involved are

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4 years ago
What will be the fundamental frequency and first three overtones for a 26cm long organ at 20°C if it is open ( at 20°C, the spee
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Explanation:

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f=\dfrac{1\times 343}{2\times 0.26}\\\\f=659.61\ Hz

First overtone frequency,

f_1=2f\\\\f_1=2\times 659.61\\\\f_1=1319.22\ Hz

Second overtone frequency,

f_2=3f\\\\f_2=3\times 659.61\\\\f_2=1978.83\ Hz

Third overtone frequency

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3 years ago
An airplane starts its takeoff by moving at 1.7 m/s. The plane must then accelerate at 3.0 m/s2 for the next 30s to reach its fi
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s= ut+\dfrac{1}{2}at^2

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Put the value in the equation

s=1.7\times30+\dfrac{1}{2}\times3.0\times(30)^2

s=1401\ m

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You can't see beyond a blind turn, so a mirror would allow you to see around the corner.
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